NB/T 20290-2014
Qualifying of continuous duty safety class motors for nuclear power plants (English Version)

Standard No.

NB/T 20290-2014

Language

Chinese, Available in English version

Release Date

2014

Published By

Professional Standard - Energy

Latest

NB/T 20290-2014

Replace

EJ/T 628-1999

Scope

This standard specifies the identification principles, procedures and methods for safety-level continuous duty motors and their interfaces in nuclear power plants. This standard is applicable to the identification of safety-grade three-phase squirrel-cage AC motors in nuclear power plants. It is also applicable to the identification of improved or repaired motors. It is not applicable to the identification of motors in valve driving devices. The identification of other types of AC motors can be used as a reference.

NB/T 20290-2014 Referenced Document

• GB/T 11026.1 Heat resistance of electrical insulating materials - Part 1: Aging procedures and evaluation of test results*， 2017-07-01 Update
• GB/T 12727-2002 Nuclear power plants--Electrical equipment of the safety system-Qualification
• GB/T 13625 Seismic qualification of safety class electrical equipment for nuclear power plants*， 2018-05-14 Update
• GB/T 22718 Thermal evaluation methods of insulation systems for high-voltage electrical machines

NB/T 20290-2014 history

• 2014 NB/T 20290-2014 Qualifying of continuous duty safety class motors for nuclear power plants
• 1998 EJ/T 628-1999 Qualifying continuous duty class 1E motors for nuclear power plants

NB/T 20290-2014 Qualifying of continuous duty safety class motors for nuclear power plants has been changed from EJ/T 628-1999 Qualifying continuous duty class 1E motors for nuclear power plants.